package com.qk.management.web.filter;

import cn.hutool.core.util.ObjectUtil;
import com.qk.common.util.JwtUtils;
import io.jsonwebtoken.Claims;
import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;

@Slf4j
//@WebFilter("/*")
public class LoginCheckFilter implements Filter {
    private static final String LOGIN_PATH = "/login";
    private static final String TOKEN_HEADER_NAME = "token";
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        String path =req.getRequestURI();
        log.info("拦截请求：{}",path);
        boolean isLoginReq = ObjectUtil.equals(LOGIN_PATH, path);
        if (isLoginReq){
            chain.doFilter(request, response);
            return;
        }
        String token = req.getHeader(TOKEN_HEADER_NAME);
        if (ObjectUtil.isEmpty(token)){
            resp.setStatus(401);
            return;
        }
        try {
            Claims claims = JwtUtils.parseToken(token);
            String username = claims.get("username", String.class);
            log.info("用户名：{}",username);
            Object id = claims.get("id");
            log.info("用户id：{}",id);
            chain.doFilter(request, response);
        } catch (IOException e){
            log.error("token验证失败",e);
            resp.setStatus(401);
            return;
        }
    }
}
